Syndicalism is an ideology which puts the premise that the government should be ran by unions, instead of a party. This, therefore, makes Syndicalism as somewhat of a ‘decentralised’ ideology, instead of one which focuses on centralisation, like the Vanguard party developed within Marxist-Leninist theory.

The issue with Syndicalism is that it is insufficient for praxis, and that Syndicalism in reality does not exist in the modern day. Rosa Luxemburg also debunked the fact that unions are not effective:

[T]he objective conditions of capitalist society transform the two economic functions of the trade unions into a sort of labour of Sisyphus, which is, nevertheless, indispensable. For as a result of the activity of his trade unions, the worker succeeds in obtaining for himself the rate of wages due to him in accordance with the situation of the labour-power market. As a result of trade union activity, the capitalist law of wages is applied and the effect of the depressing tendency of economic development is paralysed, or to be more exact, attenuated. However, the transformation of the trade union into an instrument for the progressive reduction of profit in favour of wages presupposes the following social conditions; first, the cessation of the proletarianisation of the middle strata of our society; secondly, a stoppage of the growth of productivity of labour. We have in both cases a return to pre-capitalist conditions, Co-operatives and trade unions are totally incapable of transforming the capitalist mode of production. [1]

This is not the whole story, as Anarcho-Syndicalism inherits syndicalism, but instead despises the state and any form of government. This means that not only they inherit the flaws of Syndicalism, they inherit the flaws of Anarchism as well. Meaning they’re not only ineffective, but they’re also incredibly ineffective as well. Just because Anarcho-Syndicalism is a more ‘decent’ strain, it doesn’t mean they’re right or that they are effective.