Anyways, I'm o hodler, so I hope I am wrong. 
Yes you are wrong
- 1. Inflation. Near 20 millions (18.9M if my memory serves - like Dash&Monero total supply) inflation per year is a lot... Let's think about it: in 5 years from now, circulating supply will be 3 times more than it is now and from an investor perspective this is a lot.
Inflation presented in number of coins is useless. You should always devide it by number of coins in circulation.
51,840 coins per day = 18,9 mln coins per year - here you are correct
Circulating Supply 47,718,592.04 IDNA
Inflation for next year - 39% - yea that big but idena is 2 year old inflation will go down with every next year. Bitcoin while being 2 year old had inflation around 50%. Current CAKE inflation is around 200% (150% if you consider that some of newly minted coins are burned).
So inflation is not the case that IDNA is only 5 mln $ coin.
- 2. Reward for miners is very low, and many leave (selling their coins), new one come, old ones leave... is a cycle, I can understand but on Idena is very aggresive. There is very little money to be made as miner (6 coins per block / 8000+ miners => ~3.2 coins / day / miner). I know makes no sense, I want more coins for miners and I want the inflation reduced. No. I think reducing the number of miners is the way.
Rewards are low because price is low. Not because they should get more coins becasue more coins = bigger inflation = even lower price = even lower rewards. So in this point you state that price is low because price is low. But in the end of the day the only sensible conclusion from this point is that ... price is low!