I think when a person suggests another has "racist tendencies," they should have the courage to name names: put up, or shut up should be the key. IF someone was to say that about me, I would give them a really hard time. As it happens they won't because I am not in the least racist.
That's all very well Bash but we will all be with people at times who display certain attitudes but we won't necessarily remember their names and, even if we do, it would be wrong to name names of ordinary people on a forum like this. We can 'name names' when it comes to public figures, that is fair game, but not people, for example, whom we've met at work, at a friend's house, a neighbour or maybe even family.
Nobody's going to name you; even if we they disagree with your opinions you don't display any personal animosity towards people from 'elsewhere' - you don't say, "These flipping foreigners..!", etc. At least I haven't seen that from you.