Help me hash out reasons the petit-bourgeois dissappear

[Broletariat]

Long story short, my class is reading a book that says, capitalism blows, but being petit-bourgeoise is cool. Shopcraft as Soulcraft if anyone is interested.

So, what are some tendencies that phase out the petit-bourgeoise, and I mean jobs like owning a motorcycle repair shop, plumber, electrician, etc.

How will Taylorism affect these things, or will it at all.

Edit: Alternatively, help me hash out reasons these jobs will become shit.

[Obs]

Not sure this is what you're asking, but:

As capitalism advances, it tends to form monopolies with the help of finance capital. As outlined in (I believe; it's been a while since I dusted off my Lenin shit) Imperialism as the Highest Stage of Capitalism, these monopolies will buy up smaller businesses run by the petty bourgeoisie, thus proletarianising them, reducing them to wage slaves. It's likely that not all businesses will be affected by this - some markets are simply too small for finance capital to have much to gain by investing in them. That said, it is a crucial step in the advancement of capitalism, and thus in creating a necessity for socialism - both in the countries exploited by the finance capital of imperialist states and federations, but also within these same imperialist states. In this way, the interests of workers in the "First" and "Third World" are interconnected in that the weakening of imperialism makes the flaws of capitalism itself obvious, opening up a chance for the working class to seize political power.

[Broletariat]

Yea that's sort of what I was asking.

I was hoping there would be a tendency I could apply to all petty-bourgeois enterprises, but it appears I'll just settle with the argument that not everyone can be petty-bourgeois.