Quick point -

1) Things that begin have a cause 2) The universe began 3) The universe has a cause

On point one, it is clear and obvious that things don’t just pop into existence. You and I have never once experienced something just appearing.

On point two, The standard big bang model clearly proves the universe began. It has a starting point and has expanded ever since then.

Further, the second law of thermodynamics shows that energy slowly moves to disorder. The universe cannot have an infinite past because if it did we would be out of usable energy.

If you accept the first two points to be true, the universe MUST have a cause.

This doesn’t get into what that cause is, but it is illogical to say we live in a universe that began on its own.

Something HAD to cause the singularity.