So you're saying that I can be denied employment based on my age, race, sex or religion. I don't think so.
No, that's not what I said. I said your constitutional rights end at your employer's doorstep. You have no right to free speech, bear arms, etc... at work.
Furthermore, employment isn't a constitutional right. The protections you allude to are statutory.
You posted: So you’re saying that I can be denied employment based on my age, race, sex or religion. I don’t think so.
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You can’t do those things, but it is not because of the Constitution it is because of federal laws passed.