I do not know much about probability or improbability, things just are or they are not.
But if there was a beginning to exist you would have none of the things mentioned.
If there ever was non-existence there would be zero chance of existence beginning to exist.
If you disagree please explain how existence could begin to exist if there was no existence.
God Bless,
This doesn't look like it is on topic.
The OP is a criticism of the 'it's too improbable' argument in its various forms. One should either be arguing further criticisms or posting a defense of it. This is not an ontological or cosmological discussion.