Well, considering they (well, the ones who got that far) entered Mexico peacefully and at proper points, yeah, let them come.
As I said, you detain them, process them and start the process for them to either file asylum paperwork, file for a proper Visa or send them home.
The idea that shooting them is a possibility is something that should never happen in the US. This isn't an invasion, this is an exodus, you help them.
Well, unless we aren't considering ourselves a Christian country. Which is it this week? The narrative changes on the right depending on what supports the particular sin theh are trying to law out of existance.
Matthew 25:40-45 King James Version (KJV)
40 And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.
41 Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
42 For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink:
43 I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.
44 Then shall they also answer him, saying, Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?
45 Then shall he answer them, saying, Verily I say unto you, Inasmuch as ye did it not to one of the least of these, ye did it not to me.
Some of you Trump people will have some explaining to do.....