Rome was in significant moral, cultural, and economic decline and those that chose to hold on to that failing and disturbed culture are not the ones you should be sympathetic to. They willfully and knowingly drove themselves into ruins. Christianity and it's doctrines (as they are understood in the mostly conventional, trinitarian, organized fashion) are very clearly formulated in direct opposition to late Roman culture and it's vestigial but pernicious influence throughout history.

Yes, it is true that the Christians destroyed Rome. That clearly the intent.