You are quite right sir and may I also commend you for following the truth.
To Judaize was made an evil thing early in the Christian movement even though Christ is a Jew and he set Jews to carry his message to the world.
On the venerable Day of the sun let the magistrates and people residing in cities rest, and let all workshops be closed. In the country, however, persons engaged in agriculture may freely and lawfully continue their pursuits: because it often happens that another Day is not so suitable for grain sowing or for vine planting: lest by neglecting the proper moment for such operations the bounty of heaven should be lost.
Constantine (321 AD)
Christians shall not Judaize and be idle on Saturday (Sabbath), but shall work on that Day: but the Lord’s Day, they shall especially honour; and as being Christians, shall, if possible, do no work on that day. If however, they are found Judaizing, they shall be shut out from Christ.
Catholic Church Council of Laodicea (364 AD)
I'm glad you mentioned idolatry. This truth will likely also "bring on indignation" (as you said) to a great extent. The symbol / idol of the Christian cross is a pagan symbol adopted during the early years of Catholicism.
"That which is now called the Christian cross was originally no Christian emblem at all, but was the mystic Tau of the Chaldeans and Egyptians -- the true original form of the letter T -- the initial of the name of Tammuz [...] That mystic Tau was marked in baptism on the foreheads of those initiated in the Mysteries, and was used in every variety of way as a most sacred symbol. [...] The Vestal virgins of Pagan Rome wore it suspended from their necklaces, as the nuns do now. The Egyptians did the same [...] There is hardly a Pagan tribe where the cross has not been found. The cross was worshipped by the Pagan Celts long before the incarnation and death of Christ." (Tom Harper,
The Pagan Christ, pp. 45-46)
"A still more curious fact may be mentioned respecting this hieroglyphical character [the Tau], that the early Christians of Egypt adopted it [...] numerous inscriptions, headed by the Tau, are preserved to the present day on early Christian monuments." (Wilkinson's Egyptians, by Sir J. G. Wilkinson, volume 5, page 283-284)
The use of the cross as a religious symbol in pre-Christian times, and among non-Christian peoples, may probably be regarded as almost universal, and in very many cases it was connected with some form of nature worship."
(The Encyclopedia Britannica, 11th edition, 1910, volume 7, page 506)
Exodus 20:
4 Thou shalt not make unto thee any graven image, or any likeness
of any thing that
is in heaven above, or that
is in the earth beneath, or that
is in the water under the earth:
5Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God
am a jealous God...
God does not change.... what they didn't like in the old testament they most assuredly won't like in the new.