Which is fairly tame in terms of securing geopolitical influence and enables more win-win arrangments. Especially with respect to Laos - a landlocked country with (to be blunt) zero long term development prospects. Laos per capital GDP growth has been on pace with booming Vietnam that has access to outsource manufacturing and maritime trade. Laos should be worse off than Cambodia that has 60% of current Laos per capita GDP. Even their largest export/growth sector - hydropower to Thailand is enabled by PRC (not to sound patronizing). PRC infra projects setup Laos to be the battery of region + rail connectivity for other exports = only real viable of short/medium term growth strategy for a undeveloped landlocked country with poor human development. Go look up gdp per capita trends of ASEAN since 2000 when PRC growth started blowing up, also LATM during same period. You'll be hard pressed to find any country whose per capita GDP increased by 8x like Laos. Many are luck with half that. As for societal changes on border regions that benefits from flow of migrant and economic development, that's what happens when countries get richer - things change. If you think that's a bad deal then I'm curious if you can find a better one, especially for a land locked country with no maritime access.
It is easy to look everything through the lens of GDP but it is a poor measure of healthiness of a society from sociological perspective.
> Just repeating "landlocked country" twenty times doesn't paint the clearest picture. ... >untapped mineral resource
Being landlocked is one of the major development traps, it's highly relevant. And the point is Laos is landlocked AND underdevelopped in both infra and human capita. They're not going to be Switzerland without generations of development, if ever. All those untapped resources can't be economically exported relative to sea trade... incidentally why PRC rail development in Laos also game changer. Improves economics of rare metals (gold, Laos other huge export) but less for bulk cargo like agriculture. Laos has zero prospect for being an ag-commodity export power. The most profitable specialty ag trade had export potential of something like 600M. There's simply a ceiling on how much ag can uplift, it's why largest growth sector in last 20 years is industry, which requires capital investments, for a poor country like Laos, it means FDI and period of upheaval caused by new wealth and modes of exploitation.
> never knew how to handle that
Yeah that's what happens to nouvel rich everywhere. That's a sign of development. Laos is not usefully connected to English sphere via geography... again they're landlocked and only large economic connector is PRC. If people want to make money therer it's only prudent to learn Chinese and which will increase integration, especially in border regions. Why would Laos look to rest of world when the fastest growing region is Asia? Learning English is one way street to being brain drained and losing your best.
> GDP but it is a poor measure of healthiness of a society
This is true, ergo why Xi prioritized correcting the excesses of Deng's unbalanced growth that had caused huge problematic culture shifts. Every country that's gone through rapid growth will need manage that transition. Per capita GDP is strongly correlated to Human Development Index for a reason, you need money to make a healthy, educated, productive society. At end of day Laos/PRC relationship enables Laos to have more omney than her geography would otherwise enable. It's not upper income but it's a path out of subsistence if managed properly by Vientiane, which they may absolutely fail at.