Any boycott that would get Saudi Arabia more humane government would be a good boycott. It just seems more likely that sanctions would wreck their economy and lead to a religious fanatic taking over.
In Saudi Arabia, if you're not someone he wants to torture or kill, you can enjoy increased religious freedoms, gender equality, and international ties.
It's a bit like Iran before the revolution: the Shah was liberalizing and modernizing his nation, while at the same using SAVAK to torture his opposition.
Increased compared to taliban rule? Wow, thanks so much to the benevolent dictator for allowing a woman to go out without a male companion without being stoned. And thank the benevolent dictator for not having an interest in me specially. All praise the guy who could dismember many people but chooses to do that only to a couple, and who could imprison many, but does it mostly to his family and whoever he pleases.
This quote is from a story from before Saudi women got the right to drive. The piece argues it was a common take:
Mashaal El-Maliki, a housewife:
"Female driving will destroy family life because it will give husbands a chance to know other women who (as drivers) will be free and without guardians."
The best path forward is whatever path is the shortest to making life bearable for liberal Saudis, but that doesn't end in conservative revolt (and deeper theocracy). When a considerable portion of a nation opposes basic freedoms, there are fewer viable options.
Quaint revisionism; in fact Mossadegh was already actually liberalizing and modernizing the nation while Pahlavi was turning it into a US/UK client state.
https://en.m.wikipedia.org/wiki/Human_rights_in_Iran
In Saudi Arabia, MBS is probably better than a more fanatical Wahabist government. I gather the power struggle between the royals and the clerics is ongoing. Human rights progress would reverse under the latter.