No, you swear an oath to answer honestly during the jury selection process. The lawyers will ask if you have any moral or ethical concerns that would prevent you from convicting the accused - ie you would be willing to engage in jury nullification. If you say no, but you actually do intend to nullify, then you lied under oath and could be found guilty of perjury at that point.

Sure, whatever, but lying under oath during the jury selection process is a crime called perjury. Morale correctness aside, I’m just trying to keep folks out of jail my dude.

No, they usually ask something like “Do you have any personal beliefs that would prevent you from returning a guilty verdict involved with this type of crime?” - seriously yall, this shit isn’t hard to look up and is usually posted right alongside explanations for what jury nullification is. Frankly, I doubt anyone reading this is rich enough to pull the “you didn’t specifically ask about jury nullification therefore I technically did not commit perjury”-card.

Now you’re asking them to commit perjury - which is also bad. (In case anyone reads this and decides to try their best poker face)