Forcing a monogamous person to be in a poly relationship is just as damaging and cruel as forcing a poly person to be in a monogamous relationship. More people need to understand this and stop shaming people who want/need one on one relationships.
I agree, and I have never advised anyone to push themselves or someone else to stay in a relationship that doesn’t work for them. In fact, I have also gotten feedback from readers that I am too quick to suggest that someone leave a relationship and don’t do enough to encourage people to ‘try and make it work’ by changing their perspectives on monogamy or polyamory.
I do want to point out, however, that it is actually very difficult and very rare for someone to be forced to be in a certain type of relationship. Excluding severe cases of abuse, most people are free to leave a relationship if it’s not working for them. That may be painful or unpleasant, but it is an option. Being shamed, being uncomfortable, being disagreed with, or facing a difficult choice is not the same as being forced.
If someone makes a demand of you, you can always say “no.” If someone demands a polyamorous relationship, and their partner does not want to be in a polyamorous relationship, they can leave the relationship. They are not being forced into a polyamorous relationship, they are being given the choice between a polyamorous relationship or no relationship. They are also giving their partner the option of a monogamous relationship or no relationship. In that case, either party can choose the “no relationship” option.
If you do feel like you don’t have access to your “no” because your partner is using threats and violence to force you to do something, that is abuse and you deserve help. Check the resources here.