Why is it inflationary?
The ethereum network rewards miners with 5 new ETH approximately every 15 to 30 seconds (~18,000 per day).
Bitcoin's total supply is now about 17 million BTC, and will never exceed 21 million BTC.
Ethereum's total supply is now about 96 million ETH with no upper limit.
This is not true. After the last hard fork, the reward for miners went down to 3 ETH.
Here's a chart of daily block rewards.
[1] https://en.wikipedia.org/wiki/Ethereum#Ether_supply_increase...