How did the romans feel towards the many different religions found within their empire

I believe they didn't like it. Here's why: Did you know that Charlemagne was a Christian and that he would put others to death if they didn't accept Christianity as their religion. Also, did you know that Clovis I was the first Roman leader to convert his empire to a Christians. The only reason why Clovis I started becoming a Christian was that of his wife. So, hope this helps! =)