What exactly do you mean by, "abuse"? If your argument is that Google doesn't want someone overusing the bandwidth they've paid for, then you're saying that it's reasonable for Google/any ISP to sell you something that you then can't make full use of.
If Google sells me 1gbit up/down, then I should be able to use 1gbit up/down. Pretty simple to both understand and enforce. But it's not about their network capacity - it's about forcing me to buy the more expensive business package, so I can then do exactly that thing they didn't want me doing before.
It's a violation of network neutrality. They're caring which bits get sent, not the total sum of bits.
Personal use as in you're not selling bandwidth to a third party. There is most likely no problem running a mail och minecraft server, but they definitely don't want you selling bandwidth to your neighbours or hosting your video streaming service on it.
Frankly, what's the problem with selling (let's call it giving for now, that keeps this simpler) bandwidth to a third party? It's just bandwidth, why does the source or content of the packets matter?
You are not sold a truly unlimited connection, you do not pay anything approaching the cost of a truly unlimited connection, and Google do not provide you with a truly unlimited connection.
If you want a truly unlimited connection, buy a truly unlimited connection. They cost a lot of money.
If Google sells me 1gbit up/down, then I should be able to use 1gbit up/down. Pretty simple to both understand and enforce. But it's not about their network capacity - it's about forcing me to buy the more expensive business package, so I can then do exactly that thing they didn't want me doing before.
It's a violation of network neutrality. They're caring which bits get sent, not the total sum of bits.