I think a combined approach of letting hard working illegals stay, booting out criminal and welfare illegals, and cracking down on businesses that employ illegals is the most effective approach under realistic standards of cost and logistics. I think building an impenetrable wall on our border is impractical and ascetically unpalatable for Americans. It is also a huge barrier to trade.
You have mentioned several times that you contribute to a charity clinic. You never recieved a proper response. I'm sorry it passed by me. Thank you for helping your fellow man. If God is not already shining his benevolence upon you for your charity, I believe you will be rewarded for it in the future.
We are much closer in our thinking than you seem to realize.