I think most who have had any kind of interaction with legal immigrants are 1) in favor of legal immigration, despite what the lying media claims about MAGA hating immigrants (with no distinction between legal and illegal). That's odd, considering Trump is married to a legal immigrant and 2) glad they're here and working hard to achieve what America can offer, unlike the natural born American youth you very accurately described (well, a portion... my kids work their asses off!)
I probably shouldn't, but I will admit ignorance about the UN Agenda 2030 plan. It's not that I don't want to know about something like that, it's just that I rarely give a rat's rear about anything the UN is involved with, unless it causes problems. (which seems to often be the case).
So, I went to their web site to check this out and see that they gave themselves 15 years to "end poverty and hunger everywhere". From what I see, they've made barely more than zero progress towards that goal. Entirely unsurprising. If they had any grasp on reality, they might have said they'd like to achieve some of those goals by 2065 or even by the year 2100.
You're right, somebody is transporting / feeding those freshly scrubbed illegals, and that somebody probably wants to do harm to us and our country. Thank goodness we have Vigilante Joe at the helm with his trusty first mate and border czar Cacklin' Commie-la to keep us safe. π€£ππ€£