I'm not defending BTC, BTC can't and won't scale with a transaction limit, It'll eventually succumb to manipulation that'll undermine its integrity on or off-chain.
It is worth understanding the subsidy and the block reward: BSV to BTC in this instance is an apples-to-oranges comparison, so, it is not a threat or something to consider.
The 10 BSV block reward (less the subsidy of 6.25) has a relative value of about $1680 and about 10,000 inputs (total transaction count of 5,869). so that's about $0.28 per transaction. 1 BSV costs about $168 USD.
Let's imaging BSV was worth $10,000 (1/4 less than the price of BTC).
If 1BSV was worth $10,000 and the market rate for a transaction was the same at $0.28 per transaction, and you did the same number of transactions, 5,869, with the same real-world cost. The block reward would be $1680 worth of BSV that's 0.168 BSV and not 10 BSV.
The cost per transaction impacts the block reward, The amount in BSV will shrink based on the value of BSV.
A low price of BSV, and a relatively high block reward, is useful when you want to launder ill-gotten gains via a mining pool by declaring it as income.