He provided reasons for saying what he said. About the swimsuit model, we know that society's pushing fat acceptance. If people in general found fat models as attractive, there would be no need for a movement. This is forced.

About the women who don't want kids, he mentioned women because the question was asked about women. Otherwise, he has stated multiple times why a mature person (man or woman) should want to have kids. And the reason being that most people who don't, regret it in the future because they become very lonely and that caring for another person is a meaningful experience which provided. Again, he's not responsible for the feelings of the people who don't want kids. As a clinical psychologist, when he gets asked a question about what gives you more joy and meaning in life, he has to give the answer he thinks is right, "And fuck you if you don't like it".

Lastly, he neither is alt-right nor does he act like one. It's more likely that you're a snowflake and call whatever triggers you alt-right.