Road deaths involve humans undertaking an action (driving) for a particular benefit (transport) that involves risk (accidents).
You cannot compare driving to the 'covid-19 epidemic', because driving is an action, and the covid 19 epidemic is not. You can't compare the epidemic to driving. You must compare action to action.
A more apt comparison is that humans go out of their home (the action) to work and be productive (the benefit) while understanding they may catch disease when with other humans (the risk).
You are not forced to leave your house against your will -- that is slavery, and is illegal. Anyone can stay home. Leaving your home has the benefit of both enriching you and your neighbor, and collectively, the country. Thus it is a very apt comparison.
The fact of the matter is we don't close roads because we judge them too important to merit doing so, and we decide to accept the risk (deaths). We have decided now against leaving homes because some states judge it too dangerous to do so and is unwilling to accept the risk (deaths), but that is not constant, and will likely change quite fast. I would not be surprised if many of those who called for a lockdown, start calling for it to end quite soon. Most people are only principled up until it starts actually affecting them.