Science has time and time again explained things that people had previously thought were inexplicable
Explaining where itself came from is not possible and is completely different thing.
I'll wager people 200 years ago would have said exactly the same thing about explaining where life came from, or how big or old the universe was. These things were unimaginable to them because they didn't even know
how to solve the problem. We can see how wrong they were, just as people in 200 years time will see how wrong we were, when they will (probably) have tools at their disposal to do things we currently think are impossible.
Hey, I'll let you into a little secret. People thousands of years ago lacked certain simple mathematical concepts; to them, certain questions that modern primary school children can solve were deemed impossible to answer, even in theory. Even mere hundreds of years ago, people had no concept of how to solve things that we now teach to high school children. Just get in your time machine and ask Descartes a question that requires calculus to solve. He would not only tell you that he couldn't do it, but also that it was unanswerable; he would say this with the same certainty with which you claim that we'll never know how the universe was created.
How do you explain where time comes from in a place where it does not exist? How do you explain things that defy how you are even alive? It is not possible. Science explains things that are theoretically possible to explain. It isn't theoretically possible imho to explain where a law comes from by the laws themselves. That is logical. That's why dawkins agrees.
Science has never once proved or explained how the universe came into being or where the laws of science came from and it never will.
See, there you go again.
You're assuming that because we don't currently have any concept of how this problem will be solved, we never will.
Science, technology and mathematics constantly find ways to solve problems that were previously thought to be not only unsolvable in practice, but also unsolvable in theory because people (quite naturally, but arrogantly) couldn't think beyond the time they lived in. We can't imagine a world where the origin of the universe is explainable, just like we can't visualise a fourth spacial dimension.
But our inability to visualise things is no reason to think that they can't exist or happen.
proving any of those theories is impossible. It is just as impossible to prove if there is a god or not. I am afraid you are going to be a very disappointed person if you expect science to answer everything. It won't.
I'll make a little wager with you.
If we're still alive in 100 years time (don't discount the possibility, unless you also think that medical progress has come to a stop) and the scientific consensus is still that these questions are unsolvable, I owe you a coke.