The funniest/saddest thing about tech bosses fighting unions so hard is that many of the very same things they complain non-stop about their employees would vanish with a healthy and strong union.
Worries about employees hopping from company to company? Offer them a pension and unions have perks and promotions based on seniority, people won't be leaving.
Struggling with DEI initiatives? Giving the Union rep a seat at the table means that you'll be rid of toxic managers and keep your most valuable diverse employees.
Struggling with recruiting talent? A clear union contract showing what the company will give in exchange for what expectations, you'll have a whole class of people who want stability over chasing the highest paycheck beating a path to your doorstep.
Activist shareholders bullying you about needing to do layoffs even when you know it's not going to actually benefit the company? Tell the investors "Sorry, but we can't do layoffs without risking Labor action." The Activist investors will go away and you'll get more investors who want to hold for the long haul.
Worried about hostile takeovers? Not with a union. Vulture capital will leave your business far alone - Unions are their kryptonite.