Illegal immigrants are by definition unwelcome, thats par for the course. There's about 200 countries in the world, how many do you think have it better than Mexico? Probably like 50, with most others being much shittier. They always use this narrative they are just escaping war or persecution or whatever, Mexico has none of that and hasn't for ages.
Let me put the "handout" narrative in clear terms; the consumption of social services for these dudes is much higher than average. It's not hate, its an observable trend. You seem confident the contrary is true, can you tell me why that is?