I guess you didn’t read the earlier posts where I clearly stated that attending non-Catholic Christian churches for baptisms, weddings and funerals is not a problem otherwise you wouldn’t have made your comments.
Second I quote from a response by Father Serpa of Catholic Answers to a similar question from some time back:
"In the first place a Catholic has no business attending Protestant church services even occasionally. To participate in a heretical worship service and especially a communion service can be sinful for a Catholic because such an act is an affirmation of what we believe to be untrue.
To attend an ecumenical service or a wedding or baptism is allowed, but Catholics are not allowed to attend such churches for the main reason of worship.
In response to someone’s comment that Father Serpa was out of step with the Church FrDavid96 gave this response:
"What Fr S. wrote is completely correct.
Father was addressing attending Sunday worship services. That’s clear from the context. He writing about the sort of thing addressed in the Directory 62.b which is about occasional prayers (“some form of public worship or in devotional acts”).
When we discuss the “typical” Sunday worship services (what Fr. was addressing) that’s different, and what he wrote is correct.