Does man have free will to choose salvation?
I define "free will" as the ability to do what you desire most at the time.
... so regarding salvation .... we have "free will" ... this leads to the question: what is the cause of our desires?
The first cause of our desires is GOD. The Law of Causality states: a rule of the universe that says every event that happens is the result of a specific cause. Imagine you have a row of dominoes; if you knock the first one over (cause), the rest will fall down in sequence (effect). This rule helps us figure out why things happen and what could happen next.
Application of the Law of Causality: When one who supports the idea of self-determinism is asked “why you did something he has no answer”. He will resort to a non-answer like “because I wanted to”. When asked why he wanted to he responses “because I choice to want to”; when asked why he choice to want to, he responses “because I wanted to choice to want to” … and on and on the circular reason goes. It contradicts the Law of Causality.
You don't pick your sex, your parents or your desires. I.E. Psalm 51:5
If one define "free will" as self-determinism (not influenced by others) the logic dictates that to be impossible. Empirical evidence validates this statement. Google "parent's influence on a person's religious beliefs" (https://www.pewresearch.org/religion/2020/09/10/shared-beliefs-between-parents-and-teens/) and you will find that children tend to follow the beliefs of their parents which proves self-determinism is false). (I assume the reader as elementary knowledge of statistics and and probability.)