simple but unfortunately wrong. xmr is free market money whereas dollars are monopoly issued money which means the monopolist can charge any price he wishes (e.g. he prints a 50 pound note which in reality costs only 10 pennies). this is called seigniorage, is payed by the taxpayer and the reason for systemic price inflation. increasing units of dollars alone don't cause price inflation. since xmr is free market money, there is no seignorage and therefore no price inflation.