1) Everytime you consolidate your UTXOs, your total balance in BTC goes down.
Yea, your total balance will be reduced with a little amount because you have to pay for the transaction fee for consolidating those many small outputs of yours to one input. It is best to consolidate your small output when the blockchain is not congested and transaction fees are very low so that it will only cost you little amount.
2) The chances of fees going up or down at any point in time is pretty much 50/50.
Yea, since nobody knows when the network will be congested and fees will be high, it is better that you are prepared for high transaction fee than low transaction fee in the future by consolidating your transaction so that you can have a big amount of bitcoin output so that when you want to spend from it you pay very little amount for transaction fee even if the fees are high in future.
3) Miners love it when people consolidate their inputs since that's how they get paid by people submitting transactions.
Miners get very little amount of money from this because not everyone that is using the bitcoin do consolidate their transactions, but only those who buy bitcoin with small amount using DCA or folks that are being paid with bitcoin when they render services, like forum member in signature campaigns. Miners benefits more when a new block is mined and when the blockchain is congested. In fact miners benefits from all transactions carried out in the blockchain. To consolidate your transactions, it happens once in a while when there is low fee, meaning it is peanut that the miners get from consolidating of transactions.
4) Consolidating inputs carries a risk of loss from either making a mistake and sending the bitcoin to the wrong address or being hacked. [/size]
It is not true, that depends on the carelessness of the person who wants consolidate his small outputs. You should not forget that even if you want to make a realtransaction, and you did not recheck the address that you are sending your coins to over and over again, you can still mistakenly send it to a wrong address, especially if you keyboard is infected with malware.
Based on the above, I don't see why someone would think that consolidating UTXOs provides them with any substantial benefits. Just use your coins when you are actually making a real purchase/transaction.
It provides benefits of saving you from spending too much on transaction fee in future when you want to spend your bitcoin. This is because nobody knows how high the transaction fee will be in 10 years time, it might be very high that the profit you have made from your bitcoin investment might be eaten up by high transaction fee if you don't consolidate those many small input into one, making you to lose out from the profit that was generated by your bitcoin investment. As long as BRC-20 token and Runes have not being eliminated from bitcoin blockchain transaction fees might not be affordable in future for people with many small output.