Leftists: why is forcefully seizing the means of production preferable to simply buying your own MoP?

You can buy sewing machines, Cricut machines, various gardening/farming tools, chemical components, machining equipment, 2D and 3D printers of all types, electrical components, tools required for woodworking/carpentry, practically infinite arts and crafts supplies, and even industrial-level equipment required to produce goods (no, really), plus everything in between. You're also free to buy animals like goats and chickens (with some restrictions) and plants/plant seeds as continuous sources of food to eat or sell.

I understand that some people live in restricted housing (for example, no apartment I know of is going to let you own a goat) and that some of these items are prohibitively expensive for your average working-class person. But to use one of the easier/cheaper examples: there are extremely cheap fabrics out there that go for only a few bucks per yard, and the initial upfront cost for a sewing machine and a sewing kit can be as low as $90. Not to mention the availability of large quantities of cheap fabric from bed sheets, tablecloths, and curtains at thrift stores, plus various deals/sales/coupons that are periodically available throughout the year which can lower costs even more.

Why seize the means of production (presumably with some level of violence) instead of just investing in your own clothes-making operation? At worst you don't have to rely on the owner class for clothing anymore (even if you still have to pay for fabric and electricity to run the machine), and at best you might even be able to turn a small profit by offering to mend and/or make clothes for others in addition to not being dependent on a company to clothe you. It seems like a similar process can be done by cultivating your own small vegetable garden, or investing in a small/cheap coop for two or three backyard chickens to have your own sources of food.

Obviously, these things aren't free; you still have to buy chicken feed and water plants. But you're still in charge of your own MoP without violence or upheaval. No one was hurt or killed, and you are no longer reliant on, nor supporting with your money, exploitative corporations for (at least some of) your necessities. Encouraging your fellow workers to buy their own MoP, and pooling your funds together to do so, also seems possible and feasible if you want to affect more widespread change.

Anyway, I guess that brings me back to my original question. Why seize the means of production instead of just investing in your own?