There also is no point of collective bargaining for them as they don't have centralized skills or a centralized set of employers like most union jobs do.

If you think "software engineers" don't have skills as comparably fungible as carpenters or factory works either you're not a programmer or your code is hot garbage.

It's also irrelevant with regards to unionization. Actors,.writers, lawyers, and doctors all have unions, and the last two are so old and so pervasive that it's easy to mistake them for something else.

Software Engineers are not working class people

You're regurgitating propaganda designed to divide us.

"Working class" mean you work for a living. If your primary source of income is selling your labor, you're working class. If you punch a clock or if you own a business where the main product is provided by your labor (electrician, plumber, small business owner), you're working class. Income doesn't matter. If you're retired, that still counts.

If your primary source of income is dividends, interest, passive income from investments or assets, or businesses where the main product is provided by the labor of others, you're not working class because you don't have to get up and go to work every day to make a living; other people have to get up and go to work every day to make your living for you.

they don’t do public or utility types of work.

Never heard of digital infrastructure or the internet, huh?