We talk all the time about poor people voting against their own interests. But, that is typically somewhat complicated tax and benefit issues.
This guy came to the US at a time that the republicans had suspended DACA. He then, despite having a deportation order, joins and is active in the very party that was preventing him from staying and is now deporting him.
And, his cognitive dissonance is strong enough that he is whining about it. Dude, you were an active part of your own deportation. STFU.