"A few people decide over many" is true for any kind of organisation.

If you meant, that in a democracy, a majority dictates their will onto the rest, that idea is - at best - only very superficially true.

In a functioning democracy (i.e. the population is alert), no change can be made that excessively hurts even a 1% minority. Because otherwise you get protests, riots, etc. See Gilets Jaunes and similar movements.

Our current democracies are in danger from several sides:
- a complacent populace, sedated by free money and confused by crap on social media
- increasing centralisation (EU, WHO, FATF, …) and deference of authority ("we're just implementing <next layer up> recommendations")
- autocracies, using their transaction-based nature for a speed advantage to outplay rule-bound democracies.
- the broken fiat system, the collapsing of which was accelerated by excessive demands from both the unproductive (welfare state) and the ultra-rich (bail outs), both on the backs of the middle class.


https://en.m.wikipedia.org/wiki/Yellow_vests_protests