Yes, as far as you know.
It is not difficult to see that "the Romans" persecuted early Christian belief along with other Jews, and later on a faction insisted on "their version" of Christian belief, burning books and waging war against other Christians.
Why should we believe this faction had sincere motives?
The true nature of Jesus is known to the Father [God].
All we really know is that the Arians were militarily quashed,
and creed was enforced by a series of human councils.
Jews, Christians, Muslims .. God knows who is more rightly guided.
Human beings are created by God. Jesus is a human being. Jesus is created by God. All three religions believe that, but only Christians say that he was also "fully God" as well, which means that he was not created.
It is a major contradiction that human beings are created by God, but one particular one was not.
..then we get into a debate about whether Jesus' body was real or not etc.
Still I don't think that there was any earlier group that taught the Arian teaching.
But really do you want Emperors to have accepted Arianism or do you want them to have quashed it?
The era when Christianity became politicised seems to have been a time when it went down hill in some ways indeed, but that is no indication that the trinity is not correct. The New Testament has Thomas saying that Jesus is His God after all.
The 4th century seems to have been a time when the truth was not only attacked doctrinally but also with violence, but God kept His church safe in the end even if they also were using violence against others.
It is a plain teaching of the Bible that through Jesus all things were created. Surely you can see that if that is so then Jesus cannot have been one of those created things.
It is a plain teaching of the Bible that this uncreated Jesus was sent by His Father to become a man, (He did not step down from being divine when He became a man, He remained whom He had always been, but added the nature of a servant to His divine nature, the human Son of God ) the suffering servant of Isa 53, and to obey His God and Father even to the death and rise again and take our sins on Himself in that way. (It's all there in Isa 53 actually )
There is no debate about whether Jesus was truly a man with a human body unless you disagree with the Bible about that also.