Canada's view means nothing. Their opinion has 0 bearing on this.

Now the fact that the fence won't work and will cost a ton of money are valid reasons for it to be scrapped. The fact that is a ridiculous thing when all we have to do is enforce existing laws is reason to stop the construction.

The fact that criminals that illegally try to smuggle themselves into the country might be harmed also has 0 bearing. By that reasoning electrified fencing, guard dogs, armed guards & police, and all other protective devices should be scrapped as they too can cause harm to those who illegally try to get around the safeguards

So we shouldn't use every means possible to keep illegal aliens out of our country?

I am not saying that, I am saying that

the fence won't work very well. Let's enforce existing laws. Lets stop giving driver's license to them, not to mention all the other benefits.

The part you quoted was in reference to the claim that the fence will cause more illegals to die in the desert as they try to go around it. My comment was a "so what" reponse to that argument. If they die due to their criminal actions, I won't loose sleep over it. Don't commit the crime and you won't die in the desert.