I have ~10 yrs exp. Till date I have got non-competence clause 4 times, of that I removed the clause 3 times and did not sign the time they refused to remove it

I have ~10 yrs exp. Till date I have got non-competence clause 4 times, of that I removed the clause 3 times and did not sign the time they refused to remove it. I just explained my case logically, respectfully and directly (face to face) to my line manager. My case was: - Its understood that I will not work a second job. Though I will volunteer for some charity. - Considering my domain expertise, I am more likely to get a job in a similar domain. If my future employer demands me to implement the same tech as my pervious employer, its a red flag that this company is clueless and will sink soon. If I volunteer the details of my previous companies operations, it just means that I am untrustworthy and I will not be trusted in the new company. So sharing details of my previous job is a bad idea. The 4th company manager was not even willing to discuss with me about my agreement and wanted me to go to the legal dept directly. That was clear sign that this was a very bureaucratic and not suited for me. Of course, I have only worked in small to medium sized company and they was no secret algorithms worth in the millions or billions involved. That I am sure is a different case, like the current Google vs Uber over the tech stolen by Otto from Waymo.