

Because liberalism is a hypocritical ideology.
The USA built itself off genocide and colonialism and has spent the last three centuries expanding its empire to every continent (and has long-since been an attack dog for Israel).
France endorsed liberty, equality, and fraternity at home and horrors abroad in Haiti and Algeria.
To the credit of the Liberal Party, they were much less imperialist than the Whigs they derived from or Tories. This is not to say that they were truly opposed to imperialism. Cecil Rhodes was a Liberal.
In all of these cases, the colonial adventures did not occur despite liberalism but were justified by it. We must bring enlightened civilization to the savages, you see. Locke and Mill, two foundational British figures of liberalism, were both supporters of colonialism.
I often fry whatever vegetables I can find and add a fried egg.
Rice and buckwheat are very cheap (and vegan if you’re of that persuasion). If you cook buckwheat, you can add a few tiny bits of sausage in there and you’ve got a very filling meal.
Oatmeal is great because you buy it in huge bags that last long and you can eat it for breakfast, lunch or dinner. If the budget is not that bad you cook it with milk. If it is you cook it with water (this is called gruel, medieval peasant food). If you’re making gruel add a bit of salt to make it more palatable.
An old classic is of course ramen, but the ramen bricks can be made much more filling if you boil them in a pot with a sausage or two (this requires you to have sausage).
If you live in certain tropical areas you can harvest some edible fruits from unfenced land and use this to enrich your diet.
Eating a couple extra hours of sleep for breakfast instead of food is a dubiously healthy but certainly effective way to save some money on weekends.
A pro tip is if your drawer is not very clean your onions will start to sprout and take root. I didn’t have to buy onions for about half a year at one point because I just kept cutting off a bit and it kept growing back. I didn’t water them or anything, they just did that in my dark dingy cupboard.