Avoiding your taxes isn't the solution to battle inflation, you might save some money but you're still going to spend it on buying the things you need and wants and that's still consider as paying taxes. But to answer the your question, yes, you're a bad person if you're avoiding some of your taxes, whether it's every month or every year.
It's actually not that bad if you can evade it legally, I know it's not something that is frequently talked in the society today because it is our responsibility as a citizen to pay taxes but in line with the topic, you'll be surprised that most billionaires and other rich individuals are even getting away with it without having any problems because as I said, they have done it in a legal way. Well, not evading wholly because they are still paying a big sum annually (food, clothes, wants and other needs that are also taxed beforehand are not included) but not as big if they are not having some techniques to evade some of their taxes legally.
Yes but you need resources to access valuable resources. What you brought up as an example here is typical for that. A billionaire can consult the best tax lawyers and strategists to save tons of money on top of the tons of money he is earning anyway. The average person doesn't have the money to pay for those who would be best to save them any money. This is also a reason why the rich get richer. To set up corporate structures and apply other tricks to legally save money, actually costs a lot of money, but for rich people the spending is relatively low in relation to their income. That is where average people get stuck as they can't spend the needed relative share of their income to then save part of their income from being taxed.
The question whether it makes you a bad person is up to you, but imagine everyone would avoid taxes to a degree that the infrastructure you also use suffers so hard from shortcomings in tax spending that you can't use the streets anymore or don't get an appointment with a doctor because there are no doctors anymore.