Polyamorie is that kind of art of living someone can practice only if he/she managed to find that one person to create a relationship with, which outlives everything, bevor he/she starts thinking about polyamorie.

Polyamorie offers variety, diversity, opens possibilities to develop yourself by dealing sentimentaly with different kinds of people and with yourself at the next level - a very mature like level.
BUT it works only if you have and maintain that one relationship with that one person who is your "HARBOUR" you can ALWAYS return to.
That person you have to tell everything and who is capable not to judge and understands why you need the diversity you take for yourself despite "common society rules".
You have to know you'll not losing that person - no matter what goes wrong.
Sentimentally you will always have "a single point of contact" even if you are not aware of anymore, at a certain point in time.

I do not think you can love two or more persons the same way. I do not think someone can have "the same kind of feelings" for everyone, he or she gets an affaire with. I assume polyamorie is about experiencing different things with different persons because NO ONE can cover all the needs of a human being.
So some of us will look for getting the maximum by experiencing things with different persons.

BUT there can be only one persone you will be bound to in that special way a monogamist will call "love". I repeat myself - even if you are not aware of this all the time.
Second...you have to be aware of, that each person needs individuality - so you have to offer it. Do not think, everyone is equal...

Hope you see my point.