It is tragic, terribly tragic when lives of any ages are cut short in such awful circumstances.
In my humble opinion the French authorities could and should be doing an awful lot more to prevent any such boats leaving French shores and should be looking at re-settling the migrants elsewhere in Europe, or even France! Especially as we are about to leave the EU.
There's also the 'why are they coming here' bit. I am assuming most of the asylum seekers are from poor backgrounds, escaping civil war, persecution and such like and possibly have had little or no education. So they probably don't fully understand what is happening with the likes of Covid, Brexit, and most importantly the huge amount of danger that their proposed voyages will mean to themselves, when they are at least relatively safe in France.
The French could also do more by holding education talks in the various camps to warn people of the possibly outcomes, and prevent the risks being taken. But it's probably not in their political interests to do so when we can foot the bill for those who do make it.
The way I see it, this is France's responsibility all the way through.