A. Yes or no, we should have laws regarding the who, when, where, and why entering the country?

And

B. Yes or no, should the laws be enforced???

The answer to both is, "Yes."

We have laws regarding who, when, where, and why people can enter the country. Right now, those laws say that people who are physically present in the country - no matter whether they enter through a designated port - are permitted to apply for asylum and remain in the U.S. until their asylum hearings. Other laws say that even those who are being designated by DHS for removal are entitled to have a hearing contesting that removal before an immigration judge, and are not to be deported until they have their hearing (just like you don't go to prison until you've had your trial).

So even when those laws are being enforced, you can end up with many hundreds of thousands of people who the law provides are to remain in the country until they get their hearings.