Being a child of the Thatcher era, who witnessed the taming of the unions in the UK, this seems to me extraordinary. While I support anyone's right to join a trade union and to go on strike to improve their circumstances of employment, I don't believe that the unions should be allowed to call a strike over an issue that doesn't particularly concern their relations with their employers. The people inconvenienced by today's strike are, on the whole, not those responsible for the recent increase in the prices of food and fuel; indeed, very few of the latter reside in Belgium, so the strike completely misses its ostensible targets.
As you know, Bob, Belgium has not only Socialist trade unions, but also Christian and Liberal unions, each organised into a separate national federation. Aha, you are perhaps thinking, the strike today is presumably called by one or two of the three sets of unions at least partly in protest against their rivals being more closely linked to the government. Well, no. First of all, the current government includes the Liberal, Christian and (Francophone) Socialist parties (the Flemish Socialists are in disarray). Second, all three national federations are supporting the strike. So the federations essentially appear to be striking against their own political allies in the government.
Or are they? I think this is really a manifestation of the cosy, collusive nature of Belgian politics. One or both Socialist parties have been in government solidly since May 1988, indeed for two-thirds of the last half-century; in that same time frame the Christian Democrats have been in government for all but the eight years of Verhofstadt's premiership. In a political system where you can't really vote the bastards out, indeed where layers of government proliferate so that a party, and a party leader, who lose one election can pop up again almost immediately elsewhere, the occasional general strike may be a useful safety valve to fool the workers into believing that they have more impact on the system than they really do. Of course it infuriates those of us from the ranks of the self-employed and small businesses, for whom today's action has no obvious benefit and for whom it causes immense and (what seems to us) avoidable inconvenience. But the system has other ways of buying our allegiance.
Edited to add: I am fundamentally hostile to the idea of a general strike bringing down the entire system of government, for reasons local to my birthplace.