Not sure what the problem is. Keep doing it.
This is how I operate in most traffic jams, since I only own manual cars & it’s much easier on my leg.
I genuinely don’t even remember any specific scenarios where somebody merging in caused me to have to come to a full stop (where I wouldn’t have had to stop if they didn’t merge). Not saying it never happened, but it was so rare and unnotable that I don’t remember.
I do live in the northeast US, so maybe that has something to do with it, but I don’t usually feel like I spend meaningfully more time in traffic because I let a few people in front of me.
Bonus benefit: my life is measurably better since I stopped getting pissed about people being in front of me. Road rage had such a broad impact on me, even after I got out of the car.
I was pretty high up in Actuarial at a fortune 500 insurance company. At my old company, if you went to a competitor, your account was shut off that day and none of your unused time off was paid out.
You don’t owe your company anything they won’t reciprocate. The company will continue to operate no matter who leaves under whatever circumstances - don’t fuck yourself for a faceless corporation.
If you know your manager is very employee-centric and you have a great relationship, maybe approach it with caution, but otherwise, your interests should always come first.