It sure is, if you're a bigoted socialist and that nonsense is your only "defence", and bitter because the US has done so well, whilst the leftist economies like the USSR, Communist China, North Korea, Cuba and Venezuela have done nothing except make their own people poorer.
It never ceases to amuse me when the right wits can dismiss, as bigotry, the pointing out of slavery and genocide.
Fast forwarding to present day (i.e. an era where the USSR doesn't exist) and the US is still rife with poverty and inequality. Trump is not making things better for the poor and marginalised.
Rich people have done well for themselves in the US, of course. But they're not real people.