The soundness of your argument should not depend on your stance. It is a common tactic to state that you are “pro-X” but criticize X, because people are more likely to sympathize with your criticism that way. The commenter you replied to is simply reminding us of this.
Rules of the internet: you can safely discard everything that comes before the “, but”
If ignoring context helps you feed your bias, go for it.
The soundness of your argument should not depend on your stance. It is a common tactic to state that you are “pro-X” but criticize X, because people are more likely to sympathize with your criticism that way. The commenter you replied to is simply reminding us of this.