I believe Dr. King allied with the radical left, not inasmuch as he really believed what they believed (He was a registered Republican before the war) but rather, they were a very powerful voting bloc of that time, and he wanted to get his message across.
You make strange bedfellows when you have an agenda, and not surprisingly, MLK, at that time, who was a lifelong Republican, sided with the left, only because he was more interested in getting his agenda brought forward.
And besides, winning a war abroad to bring freedom to South Vietnamese would mean nothing if there was no freedom for American minorities. We would have been hypocrites to fight that war and not help minorities gain equal rights.
King was a former member of the CPUSA and took money from them....that is more than just an alliance.....this is an old fight....no sense to beat it to death but even the most charitable review of his history is very ambivalent
and look at Google today.....the cowards won't mention Jesus on Christmas or Easter yet there is MLK on their banner
something wrong with our culture today
King over George Washington...not in my book, his holiday is pure pandering and guilt driven