Its been extremely difficult to be profitable with airdrops recently. There is very little chance to earn a great amount without having multiple wallets. On the other hand, if you use multiple wallets then there is high chance that you will caught as a multi users. Not only that there is also no assurance that you will get a good reward at the end as all of these airdrop farming started due to speculation and no team made announcement about the airdrop criteria in advance.
The only way I have seen people benefit from this airdrop recently are those who are ready to use their time and money to look for profit from the airdrop community, like new projects that come out either on their own blockchain or under layer two, which might need people to test their service and create transactions, and at the end they will be rewarded with loyalty tokens, which I have seen some people get off with a lot of money depending on the popularity of the project.