Honestly, I think the truck drivers are also a victim of this system. They have to deliver what's handled to them in a tight schedule. Often breaking some rules and sometimes being rude on trafic is the way they found to meet the requirements and don't get punished.
I'm shure they could avoid doing a lot of those things, but blaming and punishing the truck driver is not fair.
I recognize this and am sympathetic. Ultimately changes need to come from management.
But parking in the bike lane is not necessary a large fraction of the time. I always point out a convenient alternative parking spot when talking to drivers parked in the bike lane. It's not uncommon that the alternative spot is really no worse than the bike lane for the delivery driver. The problem seems to be that many drivers don't consider more than the most obvious parking spot, and that often ends up being the bike lane.
Also, don't underestimate the number of delivery drivers who hate cyclists and intentionally block the bike lane. Having talked to dozens of delivery drivers I can say some of them seem to genuinely hate cyclists.
If you cycle for transportation, you'll readily encounter delivery truck drivers parked in your lane. If you drive you probably aren't paying attention to this problem and underestimate its frequency.
I'm shure they could avoid doing a lot of those things, but blaming and punishing the truck driver is not fair.