Legislation does absolutely nothing when the people aren't involved. When people are not involved, it almost always gets usurped to remove rights and privilege from the common person.
Thus you and your roommate should be talking about these things. To remain silent is to remain complicit.
The majority of people don't seem to care about always on microphones.
Thousands subcontractors of google/amazon/ms already hear it, why you can't?
Second of all most people expect that the recordings made by voice assistants aren't going to be shared beyond the walls of Amazon/Google. A few random contractors you won't ever meet hearing you feels different than the entire world including people you know hearing it.
Lastly, Amazon/Google has a good reason to listen to the recordings: improve the technology so it works better for everyone including you. Random strangers have no good reason to listen to recordings of you, only bad reasons.
It really bugs how most people here seem to go "oh if you like using voice assistants why don't you just share everything with the whole world?" Privacy is a spectrum, not a binary choice. Somebody can be comfortable with Amazon/Google using the audio and not be comfortable with a live audio stream accessable to everyone on the internet.