I zipper merge but other drivers get upset & honk at me. I even have a bumper sticker that says "I zipper merge, so should you". Am I wrong?

Question

Update:

When the sign says "lane close ahead", it doesn't mean "merge now".  In fact, Germany even has a law which REQUIRES zipper merge (https://www.allaboutlean.com/line-layout-strategie...

Update 2:

https://www.youtube.com/watch?v=35byJxDIX88

Answer 1

In the USA if the sign says merge that means the merger needs to find a slot that is safe to move into as the lane is running out not the problem of the car in the travel lane.

Answer 2

If you enter into the other driver's safe braking distance you are wrong. You should wait for ample space before merging safely. An early signal also helps.

Answer 3

If people are honking at you then yes you are wrong. That sounds more like you are trying to FORCE the merge then actually zipper merging. 

Answer 4

You just need to be in the right country. Especially if you can both zipper and bang on the side of your car with your other hand.