Ahhh, I see you are a student of common sense....Congratulations....School of hard knocks? Or are you someone that just pays attention?
There is a correct answer and it is not a mystery. I am sure that the politics in Australia has it erro-synchronicities. (yes it is a Grailhunter word.) The answer lies in men or the lies of of men ends up being the answer we get. lol Politics is chaos and dog eat dog. If a Christian is only going to vote for a person that is near perfect....that Christian is not going to vote and it is important for Christians to vote. For a good Christian to understand politics they have to understand the concept of the "norm." It does not matter if they are Republicans or Democrats the baseline is that they are liars, schemers, and all have skeletons in their closet. Christians have to look past that.
In the old days Christians could look at person and look at their leadership qualities. Do they actually do what they promised. And by do, I mean, not only did they try, but were they successful at it. Does the person support Christian morals and values. The guy might be a drunken poker player but his initiatives, the things he strives for, do they support Christian values and morals. That is the done column and the do column. Is he or she against abortion? Is he or she actually successful at reducing drug trafficking. Is he or she an advocate of law and order. Does he or she stand up for Christian rights? Does he or she stand up for the minorities? Does he or she know how to negotiate with countries on policy or trade. Does he or she have to go to war to address issues or can he or she negotiate the terms and get it done and keep the peace Does he or she promote good education? Does he or she know how to promote a good economy? Does he or she have a good plan for healthcare? Does he or she have to raise taxes to get their programs to work or do they have the ingenuity to get it done without raising taxes. etc etc etc
In the old days you were evaluating the person. Those days are long gone. The politics in America are such that for sometime now the line has been drawn. It is no longer conservative and liberal. It is moral and unmoral, patriotic and unpatriotic. That is the dividing line. If the issue is abortion...all the Republicans vote against it and all of the Democrats vote for it. If the topic is gay marriage all the Republicans vote against it and all the Democrats vote for it. If the issue is legalizing drugs....all of the Republicans vote against it and all of the Democrats vote for it. If the topic is raising taxes, the Republicans vote against it and the Democrats vote for it. etc etc If the congress or senate is ruled by the opposing party, they will generally work against the President. Certainly there are exceptions to the rules, but in either case if the politicians do not vote along party lines they are chastised by their own party.
So to actually be effective the voter has to vote with the party that best represent their views....for Christians it is the party that best accomplishes their morals. Not that politicians are perfectly moral, but what they accomplish is moral. Not that, that is perfect either. You have to pick a side, because if you don't and the senate and congress and governors are split then it is like tying the tails of two cats together and throwing them over a clothesline....they will do nothing but tear each other up and that will take up their time and minds so that they are ineffective at governing. Effectively what we have is the American party and the Communist party....a party that acknowledges the importance of God and morals and a party that does not acknowledge the importance of God and moral. If a Democrat were to stand up at one of their rallies and talk about God they would lose most of their support. So that is what a Christians has to consider here in America.
Civil rights is another matter and i am sure your country has things going on with the aborigines. Here the Democrats have been able to convince the minorities that they were their party, but they have played them for fools. They really have not done anything for them for 50 years. They pay attention to the criminal element and put them on welfare but assume that if you gave the them a chance they could not succeed. That is what makes President Trump different than his fellow Republicans and the Democrats. He believes in access to a good education and an economy that promotes jobs....the American dream. A lot of minorities own homes and during his administration, more minorities have jobs and homes.
As far as the looting, burning and murderous mobs, that the Democrats call peaceful protests, you can read the posts on that.