I actually don't like this statement. I'd rephrase it because trying to speak in a language doesn't make you look stupid, or at least it shouldn't. Saying "I look stupid everyday" just reinforces that there is something inherently stupid about not knowing a language and trying to learn it. If anything trying to learn a language when it's not a requirement for something, is really anything but stupid.

Whether you like it or not you will look stupid to native speakers. It's a subconscious bias

No, it does. Even if the audience knows that your English or other languages is perfectly professional, speaking Chinese at a lower level does leave a certain negative impression.

I think the phrasing is fine. It's self-aware. It acknowledges that stupidity, like beauty, is in the eye of the beholder.

"Looking stupid" is not the same as "being stupid." It could be very smart indeed, depending on your circumstances, to learn an additional language, and the point being made is that when going out in public and speaking it in front of native speakers, ridicule is not unexpected, and should be embraced.