Yeah, no. You can't really claim that the treatment of the Dalits in India and the Irish travellers Ireland is somehow equivalent, that's simply a lie. The racism of the Caste system in India and its violence has absolutely no equivalent in the West today. Even Roma in Europe are treated better all things considered and it a low standard.
The Roma are much closer to a caste, as far as I know. I mean in terms of their history & behaviour (for want of a better word): the borders of who is & isn't a traveller have been more porous over time, while I think the Roma have been about as isolated as any other Indian caste.
I understand the misuse you're against here. "To lie" means to knowingly speak or write a falsehood. However, any reader knows he isn't claiming the speaker is a liar. He's claiming the statement is false, whether the author knows it at all. It's imprecise, but still legible.
I don't have a problem with the word I used. These situations are not equivalent at all, why bring that here when it's has absolutely nothing to do with topic at hand? in a dubious attempt at whataboutism? I stand by what I said.