1) Prohibition had nothing to do with replacing enforcement of laws with stricter laws. It was about passing a new law where none existed before, to take away a freedom. Your comparison makes no sense.
And I'm not saying we shouldn't enforce the law. I'm saying that the range of the allowed wiretaps should be narrow so that enforcement is feasible. And indeed, the range of legal wiretaps is actually not that broad. If we enforced the existing law, there would be fewer.
2) You have repeatedly said that we shouldn't be concerned about government privacy violations, that wiretaps are not a problem, that we have more privacy than we need, that we should trade privacy for other freedoms, that the government is efficient with less privacy. You may not have explicitly said "I want more wiretaps", but you've been arguing in favor of it quite clearly. This is not a straw man. If you don't like where your arguments lead, then maybe you should ask why you're making those arguments.
Your attempt to separate privacy from other freedoms and present them as a tradeoff is still unsound. I could likewise ask you whether you'd rather have freedom of speech or freedom from false arrest, and pretend that this is a legitimate tradeoff and that we need "not to pay much attention to it and focus our very limited resources on what's really important".