Great, but that's an artifact of living in the SF bubble which isn't anything like the rest of the planet. That is not the current engineering market, that's the current SF market. And asking you to demonstrate your skills isn't disrespecting you, you work in an industry that doesn't have a professional certification which means it's loaded with people trying to fake it for the big paycheck; due to that, it's perfectly reasonable for companies to ask for proof of skills. If that makes you feel disrespected, you aren't in touch which what it takes to run a business.
Don't care. I am the one with the power. And I have no problem using this power to my advantage.
The way that a business relationship works, is that the person with the power gets to make the decisions. And in the market that I am in, that person is me.
And I have no problem demonstrating my skills. I just demand that there is another person from the company, on the other end of the phone line or other end of the table, investing the same amount of time into the relationship as me.
If a company thinks that it is unreasonable for me to demand an equal time investment from them, well sucks to be that company, because as we have already established, they aren't the ones with the power, so their opinion doesn't really matter. They can go find someone else to interview.
Oh most happily will, even talking to you is a pain, I wouldn't work with you if you paid me. You're arrogant and entitled, you'd make an awful employee.