Nevertheless, mocking the UK for having "free speech, except when we disagree with it" is kind of specious when that exactly describes free speech in the US as well. It's simply a matter of where different countries choose to draw the lines.
If you're making the absolutist argument, then yes, you are correct.
If you're making a practical argument, then we can trade exclusions 1-for-1 in the US vs UK, and the UK list will go on far after you've exhausted the US ones.