I think Google doesn’t care about that at all.
They most likely pay peanuts compared to you for “bandwidth” (which for them is more of an electricity cost and trough-output allocation than a specific numeric value like consumers and smaller companies have). You also cache the video on your own device making the multiple tab thing useless if you don’t know what you’re doing. And Google can also just block you when they attack their servers, move traffic around, and so much more advanced stuff that protects their infrastructure.
tl;dr: Trying to boycott Google by trying to waste their resources is useless.
As I said it’s 100 times more advanced than that.
They can switch IPs, datacenters, regions, whatever they want. They even have access to BGP routing.
They also use some custom switches according to Wikipedia:
The private side of the network is a secret, but a recent disclosure from Google[90] indicate that they use custom built high-radix switch-routers (with a capacity of 128 × 10 Gigabit Ethernet port) for the wide area network. Running no less than two routers per datacenter (for redundancy) we can conclude that the Google network scales in the terabit per second range (with two fully loaded routers the bi-sectional bandwidth amount to 1,280 Gbit/s).
