Quantum mechanics is a well defined theory and sentience, however you define it, has nothing to do with it. Your reasoning is akin to saying "gravity affects everything so you can't rule out it has some connection to sentience". It's a meaningless statement.
Correct. My apologies that my comment was unclear such that from my comment's content one could not distinguish particle accelerators built by sentient life and woo-woo New Age claims of "The Secret" or manifesting.