"Excessive" and "less" are not synonyms for "bad" and "good".
This isn't about quantity, it's about quality.
One of the big problems is that regulations are immortal. They get passed and never repealed. This causes two problems. First, they don't go away even if they're bad. Second, they accumulate. That's especially problematic for bad regulations, but it's even a problem for good regulations. If you have a boat with five tons of idle carrying capacity and you decree that it carry four tons of the king's freight, all is well and there is a net benefit produced. But if you decree that it carry eight tons of the king's freight, it sinks.
So if you want to add new rules, you need to find some old ones to take back out. And you should be uniquely careful what you add to begin with, because every one has an opportunity cost, and even bad rules are sticky.
https://en.wikipedia.org/wiki/Sunset_provision
Though yes, that is a legitimate issue.
Other forms of legislative garbage collection carry high costs and side effects.
Some people think that can be fixed, get money out of politics and then good regulation can exist in the long run. Others do not think that's possible, so it's better to remove the power from government altogether, because over time it will always be bought.
Saying that if something is bad, you should try to make it good is just restating the problem.
My goal was to highlight an exceedingly tired and bogus argument.
To us from school (B), the school (A) thoughts are hopelessly naive, but it's impossible to convince anyone of our wisdom who hasn't found it on their own, and it just comes across as infuriating "you'll understand when you're older" condescension.
And so life goes on :)
The solution is to change/improve the system that is creating the regulations. There will almost definitely be new regulations involved in doing this.
I don't see how a system that creates excessive regulation can be expected to constructively par down that regulation without significant changes to that system.