> if a robot has a complicated enough internal representation of the world, it may very well develop a concept of love

There are two concepts of "may" at play here:

"may" in the sense of "nothing keeps us from imagining this", and in the sense of "we know how it works, and it can happen".

A car may crash, and glass may break are the latter.

But for the former we actually have no idea how this could work. That is what makes it a hard philosophical problem. That kind of "may" is cheap.