Definitely.
Setting the boundaries yourself and building your own family life with and for
your children, separate from your ex, is so
important.
Unfortunately, patriarchal gender roles mean than very men do not do this. They continue to let their ex do the wifework and crap parenting stuff and turn up as a willing prop for simulated family events. Of course, they’re willing props because they’re benefiting from the reflected glory without having to put in the effort.
At some point though, they meet someone new and want to move on with having a life. So things have to change. It would be ridiculous if they didn’t.
At that point, it becomes oh so
easy for everyone to scapegoat the stepmother. It’s only because she came along that stuff had to change. She took my dad away. Etc. Both parents and the children can benefit from letting that myth flourish and grow. At Christmas, at birthdays, at any other moment it’s convenient.
The same simply doesn’t happen to stepdads, for all sorts of reasons. A big one around Christmas is the simple fact that most mums are the people
who do Christmas (in all families). Her new partner is often just there, in the background. Eating some dinner, and possibly basking in the reflected glory of his wife’s efforts for her own children (maybe he contributed financially, but that’s the easy bit!). He’s not blamed for ‘disrupting Christmas’. He may even be lionised for having participated at all.
Just depressing bullshit.