A private organization (central bank) having a monopoly on printing and lending money to your government is acting "legitimately"?

Many that have studied this system would disagree.

Where did you get the assertion that a central bank is a private organization? What evidence do you have for that?

UK and US both have private central banks. This is true for all G8 countries if I remember correctly.

Most income taxes collected in the US/UK go directly to these private organizations.

In many ways slavery in the US was 'abolished' in 1865 then a revised version (aka perpetual debt slavery) was adopted in 1913 at the tail end of the US-China opium trade induced economic boom and expanded by both parties in the decades that followed.

The us central bank was chartered as an independent entity because policy makers here felt that having the central bank be embedded in the ex3cutive tended to inevitably corrupt the central banks decisions and led to crashes and devaluations and various bad politically motivated outcomes.

Our nation's ideological self-segregation is proceeding nicely. I don't want to argue with you or change your mind, but I don't want to share a country with you either.

There is no such thing as a country, just a lot of trustless interactions between sovereign mafias