Obviously the former is correct, inflation is a linear tax, i.e. currently like 2-3.5% hidden tax is imposed on any fiat capital in USD or EUR at least.
For people that don't get it yet, it works as follows:
a) people will vote for parties/persons who spend state money on THEIR personal desires.
for example, people would vote on entities which enforce a higher welfare or a higher health care budget, or really anything else people are politically interested in
b) thus, if you were elected and want to be elected again, you would want to SPEND as much money as you can, in order to convince as many people as possible that you did good for them
so we'll have a tendency to spend as much household assets as possible during the period between elections
c) ultimately, elected entities control mainstream economy and financial politics, most importantly central bank policy.
they will always try to print more money in order to spend it on various projects convincing people they did good for them without raising the taxes, while ultimately they just did scam the general public without vote.
basically, this is an undermining of democracy as the money policy can circumvent the need for tax agreement in order to spend more money
normally, as a state if you want to spend more money, you'll need to raise taxes and for that you'll need the agreement of the general public/partners. However, if you just print money you are essentially enforcing a tax on everyone which they CAN'T deny. You are imposing fees on people holding your currency to reach YOUR own goals. That is, you can scam people out of their earned money and essentially spend THEIR money for YOUR goals.
This if of course a great simplification, but I am currently at work and if people would want a debate about this I would go into more detail.