I get that some people have a desire for privacy in public. And I'm even sympathetic to it. However, with the exception of the EU, privacy in public not is a right, nor is it a thing most people believe they possess. (And even ECHR Article 8 has a carveout for recording public activities for legitimate purposes.)
If you think you should have such privacy rights, by all means, use the political process to achieve it. But note that it's not cost-free, and there will be tradeoffs.