@Tonylepony
Variants are bound to happen like flu or cold. Even if the vaccination isn’t as effective against them the boost to the immune system helps to prevent serious illness as with flu vaccination. There is no reason yet to think the Indian variants are a threat to us. There was more but can’t quite remember.
The truth is somewhere between your first post and your second.
Variants ARE bound to happen, but the parallels with flu are once again totally absurd.
Effectiveness of vaccines as you probably understand, isn't a binary situation - it's not a case of they work, or they don't. Where variants matter is that they reduce efficacy.
Let's pretend that the UK ONLY ever had to deal with the Kent strain. We vaccinate everyone and then go back to normal. The vulnerable are protected right, so no problem?? Well the vulnerable have some protection, but many would still die. Their best protection this year has been avoiding contact - take that away and even at 95% protection, 5% will still die. OK, we decide we can live with that....
Now bring along a variant that drops that protection from 95 to 80% - four times as many die - maybe that becomes unacceptable??
So that's the first issue and note - we don't yet know WHAT protection the vaccines confer against serious illness from the variants of concern.
The second and more pressing issue is transmittability. We currently reckon the AZ vaccine prevents at least 50% of transmissions - effectively halving R among the vaccinated population. But we know with the SA variant, it's likely to have no effect. Ergo, if the SA variant or a similar one, takes hold here, then R will swiftly rise, leaving us with two options: lockdown until a booster program can be implemented, or let the virus spread unchecked, risking worse variants and potentially sending us back to somewhere close to square 1.
So if you're concerned about the variants because you think they put YOU at greater risk, you're worrying unecessarily. The biggest danger with them is that if they spread too extensively, the march out of lockdown will have to be delayed or even reversed until they can be brought under control again.