Jerry, I do not understand your response. Of course the legislative branch passes laws and the executive branch enforces them. Both are branches of the government, and that is how our government is structured under state and the federal constitution. Different branches have different jobs, but it's all the government. Just because the FBI (or ATF, or EPA, and so on) is administered by the White House and not Congress, that in no way implies that laws passed by Congress are not enforced or are not even intended to be enforced by the federal government.
In the case of the Texas law, the law explicitly forbids any branch of the state government, whether controlled by the legislature or the Governor's administration, from enforcing any aspect of the law. I can't think of any other law, passed by any legislative body at any level, that explicitly forbids the government from playing any role in enforcing that law. I believe that that "feature" renders the Texas law unconstitutional. I believe that erasing the entire concept of "standing" also cannot be permitted, as it would allow anyone to sue anyone over anything without having to show that they have been harmed in any way.