Monero has a highly inflationary emission curve where around half the coins were mined in the first year and will have "Roughly 86% mined in 4 years".
By comparison, Bitcoin is almost 7 years old and only has 75% mined. It will take them another 4+ years to get to monero's 86%.
So it will take BTC & LTC ~11+ years to get to ~86% and monero only 4 years. It will take DASH ~ another 20 years to get to 86%.
Are you actually suggesting that in the long-run DASH has a more fair emission rate than BTC, LTC, and XMR? This is an incredibly disingenuous statement to make because you ignore the fact that masternodes allow the original instaminers to approximately maintain or even increase their share of the total percentage of DASH in existence, year after year.
It also ignores that in the long run Monero's emissions become very flat over time due to the tail reward. Bitcoin will eventually become more front-loaded the Monero, and Dash already is of course. See chart on the first page or two of this thread showing the effect.
You are also correct that paying coins to existing owners is not distribution and should really be factored out of the curve. That applies not only to Dash but various other PoS-ish coins that pay interest, stake-based rewards, etc.