That's not setting boundaries - that's try to control others... Boundaries are set on ourselves. Boundaries are about self-control. Learning to self-regulate, & take responsibility for me, my own wants, desires, choices, & actions.
Boundaries are about truth - me being truthful with myself, & with others with the choices I make; what I will do & won't do. It might be easier to blame others for our internal dissatisfaction, &/or the situation that we've found ourselves in, as connected to them, but in reality, our life situation is largely (not totally - as I'm wanting to avoid blanket statements :) due to what we've allowed/tolerated/gone along with because of our people pleasing issues. Or our desire to avoid conflict.
Creating & applying boundaries is taking responsibility for myself in the context of relationship with others. It's making consistent choices to affect personal change so as not to continually place myself in a hurtful, damaging, controlling situation.
Boundaries are not withdrawal from relationship either:
Boundaries are only built & established in the context of relationship. To run from a relationship as the 1st step of boundaries is not to have boundaries at all. It is a defense against developing boundaries with another person. The only place boundaries are real is in relationship with another person.
So, every relationship is affected by the boundaries I set, because the boundaries I set have to do with me. And that's a great place to start affecting change...
To be continued...