Yes the Lord`s footstool is when the His enemies are defeated however, then comes their judgments. Then next verse says `Rule in the midst of your enemies.` (Ps. 110: 2)
And please show me where the Lord has been - `constantly bringing judgement and defeating His enemies since the first advent.`
Really don’t you see that evil men and nations like hitler for example have there time and then Jesus brings judgement on them through other nations?
For example let’s look at the apostate Israel and especially the Pharisees
Luke 19:41-44
41 As he approached Jerusalem and saw the city, he wept over it 42 and said, “If you, even you, had only known on this day what would bring you peace—but now it is hidden from your eyes. 43 The days will come upon you when your enemies will build an embankment against you and encircle you and hem you in on every side. 44 They will dash you to the ground, you and the children within your walls. They will not leave one stone on another, because you did not recognize the time of God’s coming to you.”
Yes Jesus used Rome to Judge Israel for His purpose and events like this have been happening against Jesus enemies for the past 2000 years just like in the verses below about Babylon the great.
Revelation 17:16-17
16 The beast and the ten horns you saw will hate the prostitute. They will bring her to ruin and leave her naked; they will eat her flesh and burn her with fire. 17 For God has put it into their hearts to accomplish his purpose by agreeing to hand over to the beast their royal authority, until God’s words are fulfilled.