It's not ok for me paying my taxes but it is a liability for us therefore we have an obligation on paying our taxes as well as the other citizens we have living in the same country, to be fair we don't really carry the same burden when it comes to paying our taxes as it scales up depending on which tax bracket you belong and I think it is only fair that the lower income earners have lesser tax liability than the ones earning higher ones.
I think for your case you are experiencing a higher tax liability because you have yielded a higher gain during that year thus placing you on a higher bracket. If you want to reduce your tax liability you should do more research in your country where you are living. For example since I think you are living in a European country there are some countries in their like Germany where you will be exempted for tax if you held your crypto position for more than 1 year. There might be similar laws you have in your country which reduce or completely remove your tax so really there is a lot of options in which you can lessen your obligations.
Indeed, Its one thing availing of the TAX free laws in a different country but there
are certainly criteria to avail of these. We also need to bear in mind the criteria in
our residing country for TAX free status.
I.E move to Germany for 1 year to avail of the TAX free laws but potentially still be
liable for TAX in your normal country, you might have to be a non resident of your own
country for more than a year.Even if Germany has that kind of law I didn't say that you need to move to Germany because of it. My main point is that you must know your own domestic laws in order to know if you have ways to lessen or even completely remove your tax liability which is possible even in capital gains. Also I didn't mention anything about just focusing on finding tax exemption laws because this will rarely come in our taxation policies. You have mentioned in your OP a company that can reduce your tax liability I guess you only need a lawyer/CPA to know some tricks in order to lessen your tax liability they'll be more familiar with the law and they'll surely help in your case when it comes to taxation.