I agree, completely.
I choose not to object to his decision not to discuss his children in public, and perhaps even welcome it. That's not the same as defending everything or the major part of what he does in the world. There are plenty of folks on here who are more than willing to jump on my comment and interpret it as me defending the Tories. That's really their problem and not mine though, even if I might encourage them to do so.
By the way one of the issues with going into public people's private lives is that it impinges on people connected to them, who did not choose to be connected to them and who aren't seeking to govern us. It's particularly the case with children - no child chooses their parent. We can all speculate on Boris's motivations for not wanting to discuss anything to do with his children but to not have them caught up the consequences of his antics is, in principle, absolutely right. So, if he says he is not going to discuss his children - that's that as far as I'm concerned.