To me I don't really care if Mexico pays for the wall or not - just build it. We have a significant problem with illegal immigration that needs to finally be dealt with.
How does the wall solve that though? The most common way for somebody to be here illegally is by overstaying their visa. A wall doesn't help that. There are also more illegal immigrants leaving the country than entering.
The wall will serve 2 purposes - making it more difficult to get over the border (not impossible obviously). Second it will slow the drug cartels getting their dope over the border. There are not more illegals leaving than entering. I understand why they want to come here - there is no money to be made in Mexico and it's a tough life. I blame that on the Mexican government who does nothing to improve the lives of their people so they don't feel the need to leave. But since they won't do anything we have to do something to protect our citizens. I hate hearing about families like Kate Steinle who lose a beloved family member to an illegal criminal immigrant. If US law was followed she would be alive today.
Do you have anything to support the claim that there are more people entering than leaving or is it just your assumption? They have actual data to prove it.
I'm all for addressing illegal immigration. But, I think it's important to make sure the solution is more than symbolic. It needs to address what is actually happening, not just a perception of what is happening. You also don't say anything about how the wall will address people overstaying their visas which is the biggest culprit of illegal immigration.