And there are plausible explanations.
Why assume the laws were caused? That is the trap of infinite regression.
It's not a trap, it's an issue. In philosophy you need to be consistent with your views. If you argued that there is no cause of all other causes, then you're essentially using the same argument many theists use to prove their God, Gods, etc. and that is by saying that there was simply a first cause, and that's it. There, problem solved. But when you make this exception, you then have to wonder why you don't use this same reasoning for other things. Like saying there are no causes of causes ever, there's just 1 cause of why, let's say, people exist as they do. People are born from their parents, there's nothing else we need to know... but if we did that, then people would have never discovered evolution, and so many other things.
These tend to be claims made by theists. Atheists can defer to science and how it explains morality as an evolutionary trait common in most animals. And meaning and purpose? What makes those controversial? These originate in human minds.
Please do your own research before jumping to conclusions like this.
Like what? I don't really relate to such problems. I've been an athlete most of my life and I find meaning in sport. Could it be many folks are just lazy and not very motivated to do meaningful things in their lives, and they seek external validation?
Wow, that's very judgmental, and poorly thought out. You know what, I'm just going to stop debating with you as it would seem that your views are too shallow to make this worthwhile to me. The way I see it, you need to do a lot of research into philosophy instead of acting like you know enough to debate with it, or you could just not do that, and simply stop pretending that you know what you're doing.