That objective is indeed difficult to reach. In reality, the reason for lower corporate tax rates is to allow and facilitate reinvestment. According to what I understand, the government now wants to prevent people from putting money aside in order to fund various plans, as you quite rightly said, rather than reinvesting it.
What can be done in those circumstances? I don't know. However, as someone said, rather than applying the measures to everyone, we could probably target certain activities, perhaps those of professionals who do not generate any economic activity, given, for instance, the number of people they employ. We could start with that, rather than targeting everyone. I must say that this is quite broad for the moment.
I might also mention that among the three categories of tax measures, this is the only one where nothing has been proposed. According to what I understand, there is a consultation going on. However, measures are being proposed regarding income splitting and the conversion of dividends into capital gains. The table has been set, so to speak, in those categories. In the case of this other category, it would probably be advisable to fine-tune things a bit and proceed step by step.