No, it is u that dont get it.
U ARE COMPETING with asics because asics will push difficulty to the coins u are mining. Profit margins for mining are thin these days. It is abit higher right now compared to 1-2 months ago due to recent price spike but that will correct soon as more hashrate enters market. U can always have an alt coin to mine but it is gonna make low or negative returns for u because of difficulty increase, which are pushed by asics from other coins.
U know wat. U just wait a few months. The antminer Z9 mini will push gpu miners out of zec and bitcoingold,etc. Those 2 are billion dollar coins. Lets see where those zec/btcgold gpu miners point their GPUs to. All other coins difficulty will go up. And the day a stronger ETH miner appears or the E3 gets sold cheaper, u will see a 78 billion gpu coin aka ETH get heavily flooded by asics. That will be the day u rue not thinking ahead. Your fpga will still work then and have coins to mine, but with very low profit or possibly negative profit.
Not sure wat your numbers will be but I dont believe u will be able to get any numbers on the fpga that make sense.
Anyways, do write your fpga experiment here perhaps

Asics do not push difficulty on the coins on which there are no asic. Asics drive away GPU on coin that can be mined by Asic.
Difficulty is pushed by the additional GPU leaving the Asic mined coin. As a result you are competing with GPU, not asics. You are just trying to do word play and circumvolated logic.
Eventualy, you could say that you are competing with Asic by proxy but not directly.
Still, on the coin you are mining, you are competing with GPUs.
With your FPGA, you are more profitable than GPUs.